# service mysqld start

# mysql_secure_installation　←　MySQL初期設定

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we’ll need the current
password for the root user. If you’ve just installed MySQL, and
you haven’t set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 　ENTER
OK, successfully used password, moving on…

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set root password? [Y/n] 　rootパスワード設定
New password: 　rootパスワード応答
Re-enter new password: 　rootパスワード確認
Password updated successfully!
Reloading privilege tables..
… Success!

By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] 　ENTER(匿名ユーザー削除)
… Success!

Normally, root should only be allowed to connect from ‘localhost’. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] 　ENTER(リモートからのrootログイン禁止)
… Success!

By default, MySQL comes with a database named ‘test’ that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] 　ENTER(testデータベース削除)
– Dropping test database…
… Success!
– Removing privileges on test database…
… Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] 　空ENTER
… Success!

Cleaning up…

All done! If you’ve completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!

# mysql -u root -p
Enter password:　　設定したパスワード
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.0.77 Source distribution

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> select user,host,password from mysql.user;登録済ユーザ、パスワード確認
+——+———–+——————+
| user | host | password |
+——+———–+——————+
| root | localhost | *********** |
+——+———–+——————+
ホスト名がlocalhostのrootユーザを確認

mysql>　exitログアウト

# mysql -u root -h ‘www.sample.com’ -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 5.0.77 Source distribution

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> exit

# vi /etc/aliases

user: root
root: ***@***.***

# newaliases←設定を反映
# echo test|mail rootテストメール送信

# vi yum update

Loaded plugins: fastestmirror
Repository ‘vz-base’ is missing name in configuration, using id
Repository ‘vz-updates’ is missing name in configuration, using id
Determining fastest mirrors

#vi /etc/yum.repos.d/vz.repo

[vz-base]
name=OpenVZ Base ←追加
mirrorlist=http://vzdownload.swsoft.com/download/mirrors/centos-5
gpgcheck=0

[vz-updates]
name=OpenVZ Updates ←追加
mirrorlist=http://vzdownload.swsoft.com/download/mirrors/updates-released-ce5
gpgcheck=0

# vi /etc/postfix/main.cf

virtual_maps = hash:/etc/postfix/virtual

# vi /etc/postfix/virtual

root@sub.sample.com 　　root
@sub.sample.com　　　user1

# /etc/init.d/postfix reload

# postmap /etc/postfix/virtual